forwarded_ip - no place to put geo ... fields

We have often original IP/X-Forwarded-for IP address in logs. Sometimes together with its geo information, sometimes we call geoip filter on it. Currently there is just network.forwarded_ip field which is very confusing and can not be used to store additional fields like geo. I think this should be replaced with something client.original.*, server.original.*. The original field is the original (x-forwarded-for) IP address and can also store other fields as well (client.original.geo.*, ...). Also it is very clear to which it is related to - client.original is related to client, server.original to server.